what's it like behind the wheel of the car actor paul walker died in? >> is it easy to do something stupid? >> you know, it is. it's just having so much power under your foot that, you know, things can happen. >> more than 600 horsepower, hair-trigger steering. was it all too much to handle? >>> second hour of "newsroom" starts now. >>> and good morning. i'm carol costello. thanks so much for joining me. get ready for the arctic invasion. plummeting temperatures from montana to texas, missouri to ohio. we're talking snow, ice, sleet, freezing rain. places in colorado seeing major traffic backups with heavy snow and much more to come. minneapolis could get up to 10 inches of snow while places like ohio may get hammered with ice. look at the drastic change changes in temperature. dallas is predicted to have a high of '81 degrees today and expected to drop to 31 degrees by friday. that's a swing of 50 degrees. cnn's anna cabrera is -- indra petersen is in the cnn severe weather center. let's start in boulder. >> reporter: it's the combination of the snow a